Patriot PE2 Electric Fence Energizer Plus 250-Feet Made in U.S.A. 17 Gauge Spool Aluminum Wire for Containing Pets and Keeping Out Small Nuisance Animals Set includes 1 Patriot Electric Fence Charger plus 1 250ft spool of Patriot Made in the USA 17 Gauge aluminum wire and Quick Tip Guide. Does NOT include a ground rod. Only effective for small nuisance animals. PE2 Output Voltage: Up to 5 kV max, 2.8 kV @ 500 ohms;Patriot Wire tensile strength 38,000 PSI; Fi-Shock Breaking load: 90 lbs; Fi-Shock aluminum wire Will not rust; Will Keep Dogs from Digging Out of Their Pen; Keep Rabbits and Deer Out of Your Garden; For Use as an Electric Dog Fence The ground system should be at least 33' (10 m) away from electric or telephone ground systems to avoid interference. Moist soil conducts electricity much better than dry soil. If possible, locate the ground system in a boggy area. In dry weather, wet the area around the ground system to keep the soil moist. Make sure there are a sufficient number of ground rods. See your chargers user manual for recommendations. If in doubt, use at least three ground rods. Use more ground rods if your soil conditions are not ideal. Ground rods should be at least 6'6" (2 m) long. One long ground rod works better than several short ground rods.